Lubricant-indicator.



No. 700,682. Patented May 20, I902.

P. c. E. GOETZE LUBRICANT INDICATOR.

(Application filed July 25, 1901.)

(N o M ode l.)

' m: "cams FUERS cov. Mar ammo WASHINGTON, n. c.

UNITED STATES PATENT OFFICE;

PAUL CARL EDUARD GOETZE, OF HAMBURG, GERMANY, ASSIGNOR OF ONE- I-IALF TO FIRM OF FRANZ SANDER, OF HAMBURG, GERMANY.

LUBRICANT- SPECIFICATION forming part of Letters Patent No. 700,682, dated May 20, 1902.

Application filed July 25, 1901;

To a whmn it may concern.-

Be it known that I, PAUL CARL EDUARD GOETZE, a subject ofthe GermanEmpero-r, and a resident of Hamburg, in the German Empire, have invented certain new and useful Improvements in Lubricant-Indicators, of which the following is a specification.

My invention has for its-object the provision of means whereby the proportion of a lubricant, necessary to properly lubricate certain moving machine elements, hence the quality and lubricating properties of such lubricant and its proper distribution to said moving parts may be automatically determined and registered or recorded.

The invention has relation more particularly to the application of the means above mentioned, for obtaining the data set forth, to machines the operating elements of which are driven by a fluid which also serves or may serve as a carrier for or as a distributer of the lubricant, or bothas, for instance, to; steam-engines-so that the proportion of thelubricant held in suspension in the fiuid,the lubricating properties of such lubricant, and its distribution to the fluid-operated parts, hence also the quality of the lubricant and the proportion thereof required to properly lubricate said moving elements, can be automatically determined and registered at every point of the stroke of the piston. Hitherto in order to ascertain these facts so important for the undisturbed working of piston-engines it was necessary tostop the engine and remove the cylinder-cover. Besides the objectionable interruption in the service the aforementioned procedure has the further disadvantage that by inspection of the machine while it is at a standstill it is only possible to ascertain the faultylubricatiom-but not the cause of it. Y

My invention consists, mainly, in that dur-. ing the working-0t" the machine steam from the cylinder is caused to impinge on a surface (preferably on a'paper strip) which is moved to correspond with the'piston motion. The lubricant mixed with the steam is deposited on the surface, and thus the intensity, distribution, and coloring of the grease or oil spot enables an estimate to be formed fierial No. 69,724. (No model.)

as to the quantity, quality, and distribution of the lubricant.

In the accompanying drawing I have illustrated in side elevation, partly in section, a preferred constructional form of my improved lubricant-indicator to be connected with the interior of a steam-cylinder. My improved indicator apparatus consists of a short tube a, fitted at one end with a tap c,formed with a nozzle b, and at its other end with a suitable screw-joint d, preferably in form of a cock designed to be secured on the indicator-socket of the engine-cylinder. The tube a is fitted with a pressure-gage e and thermometerf and the 'box of the tap with a bent arm g, suitably connected thereto. The said bent arm carries at its free endadrum It, so disposed as to face with its peripheral surface the nozzle b ofthe tap c. The drum h is adapted to be rotated-around its axis byacord 7o 'e'in the manner usually adopted for indicators in opposition to a spring arranged in the interior of the drum" and not especially shown in the drawing, the drum being further provided with the clamping-tongues k for fastening the paper strip to be placed around the said drum. After having secured the paper strip upon the drum and the apparatus having been mounted in position in communication with the steam-space of the cylinder I the tap a is opened, thus causing steam to be blown onto the paper on the drum h. -At the same time the cord 7 fastened to the crosshead of the engine, is pulled so as to cause fresh portions of the paper to be placed constantly in front of the nozzle 12 during the entire piston-stroke. It is clear that in this manner a correct estimation of the distribution of the lubricant is obtained, while at the same time proof is furnished whether I the 0 steam afiects the lubricant favorablyfor decomposes the same, and further, also, whether the distribution is uniform or interrupted for a portion of the path, so as to lead to'the wearing of the piston atsuch parts. o Thede- 5 fects thus ascertained may then be overcome by the use of other lubricants or by a change in the supply, 850. By further experiments or records it may then be stated whether by these changes of the lubricant or in its supzoo ply the desired result has been obtained or not.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. Apparatus such as described,comprising a tube connectible with the steam-space of a power-cylinder, a nozzle at the free end of said tube, and means for moving a record-card across the nozzle in front of the same, for the purpose set forth.

2. Apparatussuchas described,comprising a tube connectible withthe steam-space of a power-cylinder, anozzle at the free end of said tube,the latter provided with a pressure-gage, a thermometer, and with a stop-cock on the nozzle side of said devices, and means for moving a record-card across the nozzle in front of the same, for the purpose set forth.

3. Apparatus such as described,comprising a tube connectible with the steam-space of a power-cylinder, a nozzle at the free end of said tube,the latter provided with a pressure-gage, a thermometer, and with a stop-cock on either side of said devices and means for moving a record-card across the nozzle in front of the same, for the purposes set forth.

4. Apparatus such as described,comprising a tube connectible to a steam-cylinder, a nozzle at the free end of said tube and a recordcard carrier adapted to oscillate in front of said nozzle, whereby the card will be moved across the jet of steam to leave a permanent oil-record on the card to indicate the distribution and quality of the oil in the cylinder, for the purpose set forth.

5. Apparatus such as described,comprising a tube having a steam connection at one end, a nozzle and a stop-cock controlling it at the other end, a thermometer and a pressure-gage intermediate the ends, and an indicator-drum to carry a record card adapted to be oscillated in front of said nozzle, for the purpose set forth.

PAUL CARL EDUARD GOETZE. WVitnesses:

MAX KAEMPFF, A J. CHRIST; HAFERMANN. 

